Highly regioselective oxygenation products from 2,6-di-t-butylphenols display interesting chemical behavior under strongly basic conditions, being efficiently utilized for synthesis of hydroquinones, 1 o-benzoquinones, 2 cyclopentadienones, 3 3-hydroxyphenylacetic acids,' cyclopentenones, 5 and B-qu
Peroxy esters—III: Acid-catalyzed reaction of 4-hydroperoxy-2,5- cyclohexadienones and their derivatives
✍ Scribed by Akira Nishinaga; Koichi Nakamura; Teruo Matsuura; Anton Rieker; Dieter Koch; Rainer Griesshammer
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 748 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4020
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## Abstract magnified image Coupling of various substituted phenacyl acetates **1** and diazonium salts **3** was studied. If the phenacyl acetates were substituted by an electronaceptor group such as CN or COOEt 3‐substituted phenyl‐5‐(phenyl‐hydrazono)‐5__H__‐furan‐2‐ones **4** were formed. Also
## Abstract 4‐(Dicyanomethylene)‐3‐methyl‐1‐phenyl‐2‐pyrazoline‐5‐one (1) readily reacts with α‐amino acids and their esters by Michael addition and subsequent elimination of HCN to the adducts 2a–k. One of these, 2i (obtained from methyl glycinate), adds stereoselectively to __N__‐phenylmaleimide